﻿<!DOCTYPE html>
<html lang="en">
<head>
    <title>函数表达式定义</title>
</head>
<body>
    <p>函数存储在变量后，变量可作为函数使用：</p>
    <p id="demo"></p>
    <script>
        let x = function (a, b) { return a * b };
        document.getElementById("demo").innerHTML = x(5, 6);
    </script>
</body>
